Start with two lie-flat Bassinet V3 spaces for newborn twins, then move into a two-seat Vista V3 as the children grow. This package adds a matching RumbleSeat V3 now, so the lower adapter set comes in that box and no duplicate standalone Lower Adapter is needed.
Twin families who want the newborn and later stroller-seat stages purchased together. Not every included attachment is used at the same time; the package is designed around age progression.
At a Glance
Newborn phasetwo Bassinet V3 units from birth to 20 lb/push-up milestone.
Later double-seat phaseVista Toddler Seat plus the included RumbleSeat V3.
Hardware completeUpper Adapters plus the lower adapter set included with RumbleSeat V3; no separate lower set.
Why Families Choose It
- One purchase covers twin-bassinet and later two-seat phases.
- RumbleSeat V3 is already color matched for the later stage.
- The lower adapter set is sourced once, from the RumbleSeat V3 box.
- Clear lifecycle copy prevents the false impression that every component mounts simultaneously.
Specifications and What Is Included
| Included |
1 Vista V3, 2 Bassinet V3 units, 1 RumbleSeat V3, 1 Upper Adapter set |
| Lower connection |
One compatible lower adapter set included with RumbleSeat V3 |
| Bassinet fit |
Birth to 20 lb or until push-up milestone |
| Toddler Seat fit |
Approximately 3 months to 50 lb |
| RumbleSeat V3 fit |
Approximately 3 months; up to 40 lb or 36 in |
Is This the Right Choice?
Choose this package ifyou want twin bassinets now and the matching second stroller seat ready for the later stage.
Choose the non-Grow package ifyou prefer to buy only the newborn setup now and decide on a second seat later.
Age and Stage Guide
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Birth: use both Bassinet V3 units in the supported twin-bassinet configuration.
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Individual transition: stop each bassinet at that child’s 20 lb/push-up milestone and move only when the child meets the replacement seat’s guidance.
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Mixed transition: use a supported bassinet-and-seat configuration as one twin becomes seat-ready before the other.
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Two seated children: use the Vista Toddler Seat and RumbleSeat V3; observe the separate 50 lb and 40 lb/36 in limits.
Frequently Asked Questions
Does this include two bassinets?
Yes.
Does it include the RumbleSeat V3?
Yes.
Do I buy a separate Lower Adapter?
No. RumbleSeat V3 supplies the compatible lower adapter set.
Are all included pieces used at once?
No. This is a lifecycle package with newborn and later seat stages.
Can one twin transition before the other?
Yes, only in a configuration shown as supported by UPPAbaby and when each child meets the applicable guidance.